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PMS271-D20 Datasheet(PDF) 51 Page - PADAUK Technology. |
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PMS271-D20 Datasheet(HTML) 51 Page - PADAUK Technology. |
51 / 90 page PMC271/PMS271 Series 8-bit ADC FPPA TM 8-bit Controller ©Copyright 2018, PADAUK Technology Co. Ltd Page 51 of 90 PDK-DS-PMX271-EN_V105 – Dec. 18, 2018 After the ADC module has been configured as desired and the selected channel has been configured as analog input. The selected signal should be acquired before conversion, and the AD conversion can be started after the acquisition time has elapsed. The following steps should be followed to do the AD conversion: (1) Configure the ADC module: Configure the voltage reference high by adcrhc register Select the ADC input channel by adcc register Configure the AD conversion clock by adcm register Configure the selected pin as analog input by padier and pbdier registers Enable the ADC module by adcc register (2) Configure interrupt for ADC: (if desired) Clear the ADC interrupt request flag in bit 3 of intrq register Enable the ADC interrupt request in bit 3 of inten register Enable global interrupt by issuing engint command (3) Start AD conversion: Set ADC process control bit in the adcc register to start the conversion (set1 adcc.6) (4) Wait for the completion flag of AD conversion, by either: Waiting for the completion flag by using command “wait1 addc.6”; or Waiting for the ADC interrupt. (5) Read the ADC result registers: Read adcr the result registers (6) For next conversion, goto step 1 or step 2 as required. |
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